I stayed at Jia-Yi's apartment in Bangkok twice during my recent trip to Thailand, and can definitely recommend it. The apartment is in a great location - about a 15 minute walk to Sukhumvit Road and the Asok sky train. It is in an eight-story building with a pool on the roof.
The apartment is clean, well-furnished, and has a really spacious bathroom and shower. There is also a doorman downstairs 24 hours a day.
Jia-Yi was a fantastic host, especially in regard to communication with me. I've been using Airbnb for five years, and I would say she has been the best host I've had in terms of responding to questions and requests.